Last post on May 14, 2002 at 2:59 AM
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Chevrolet Silverado 1500, Chevrolet Silverado 2500, Chevrolet Silverado 3500
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#240 of 2238 2001 silverado 2500 hd ,engine bottom end banging noise
Feb 24, 2001 (11:25 am)
purchased new 2001 chevy LT silverado 2500 hd 6000 vortec dec.28,2000, truck ran great till after first oil change 3500 miles febuary 15 2001, next day had a bottom end banging since , so the dealer puts it up on the rack and listens manualy shut down pistons and said its # 7 is bad, so they have to call GM tech for advice ,HAHA, so get a call today Gm tech advises service to drop oil pan and look at the pistons they have a mark on them if the marks do not line up on #7 then it was put in backwards then service would have to take piston out rotate 180 degrees and put piston back in this should cure the problem, But If they do line up sounds like new engine. I am very un happy with GM this truck has on 3500 miles and we have to play this game. I wonder who put my truck together the day it was made, any one else had this problem, Very Unhappy
#241 of 2238 2001 silverado 2500 hd ,engine bottom end baning noise
Feb 24, 2001 (12:25 pm)
I have been getting conflicting stories from the same service guys every time, they say I dont want someone tearing apart my new engine and then they want to tear it apart, then I get GM doesn't want us to break down new engines, then I get a call GM tech wants us to drop oil pan and check pistons, I have 3 file numbers on this truck, have spoke with GM and I am really ticked off, this truck is brand new, then they say new engine, well then my mileage will never be right for the rest of the trucks life, will numbers match and god knows what I will have to go through with new engine no guarantee of leaks any were, should I have to go through all this with a new truck with 3500 miles, then they put on the rack and found # 7 piston is bad, they have to call GM tech for help, GM tech tells them the 23rd that to drop oil pan look at pistons they have marks on them if the mark doesnt line up on #7 then it was put in backwards, to take out that piston out rotate it 180 degrees and replace it that should clear the problem, but if the pistons do line up the service man said who knows what the problem could be,thats when he said new engine, I have only the BBB or states attorney to speak with next, And from the 15th till the 22 they kept saying the noise was normal, I guess they think we are stupid, I think I have the right to either get a new truck or they can have theres back... any advice or suggestions would be helpful.. well i take truck in on febuary 26,2001 to see if the pistons line up or not, THank you for letting me vent
#242 of 2238 Give them a choice
Feb 24, 2001 (2:58 pm)
new engine or new truck. If they say new engine, make sure you mark the block in an inconspicuous place... seems it going to be hard to trust this dealer... even GM for that matter....
#244 of 2238 still looking for help
Feb 25, 2001 (7:17 am)
has anyone had success with the wind and road noise as in 222 if so please advise
#245 of 2238 HELP
Feb 25, 2001 (6:07 pm)
posted about rear tire wear on a 97 Silverado last night , signed off and came back later and looked at it ,. Today I cannot find my posting.What happened? Sure would like to find out if bad pinion bearing in positrac rear end would cause right rear tire to wear on the inside(just like a bad toe in on front)
Feb 25, 2001 (7:20 pm)
found original , don't know why couldn't see it before (#226) Still need to know about wear on tire
Feb 25, 2001 (9:19 pm)
I couldn't understand this statement, "The plastic trim from the door to the rear window is like a large sound chamber....." What plastic trim? Which door? Kind of hard to provide a solution when you don't understand the question. GM is very generous with the plastic trim or otherwise with these trucks.
Anything is possible, when speaking of a positrac, I'm assuming you're describing a locker and not a limited slip. With a locker, both rear wheels should turn at the same speed. If it is not working correctly, it could cause abnormal wear on the rear tire as the tire would bind on a turn. I would think that it would be noticeable if this happened with enough frequency to cause the wear you describe as you would have a scuffing effect.
#249 of 2238 obyone sorry heres more info
Feb 26, 2001 (4:23 am)
this is a re cab sb, the trim I'm talking about is at the B column from the floor to the roof about 10 inches wide from the door to the rear of the cab. It has the rear speaker in it. Cross wind noise is very bad and rear tire road noise is also loud. Drivers side is much louder then right side. I looked way back in Silverado problems and found that it a cure might be to have the door re hung? Do you think a GM body shop would do this under warranty